Effects of successive harvesting in the same year on quality and bioactive compounds of grapes and juices in semi-arid tropical viticulture
| Autor: | Marcos dos Santos Lima, Marilde T. Bordignon-Luiz, Giuliano Elias Pereira, Carla Valéria da Silva Padilha, Isabela Maia Toaldo |
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| Přispěvatelé: | CARLA VALÉRIA DA SILVA PADILHA, Instituto Federal do Sertão Pernambucano, MARCOS DOS SANTOS LIMA, Instituto Federal do Sertão Pernambucano, ISABELA MAIA TOALDO, Universidade Federal de Santa Catarina, GIULIANO ELIAS PEREIRA, CNPUV / CPATSA, MARILDE TEREZINHA BORDIGNON-LUIZ, Universidade Federal de Santa Catarina. |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Atividade antioxidante
Grapes Grape juice Uvas brasileiras Flavonoid 01 natural sciences Catechin Bioactive compounds Analytical Chemistry Anthocyanins Climatic data Perfil polifenólico 0404 agricultural biotechnology Phenols Antioxidant activity Evapotranspiration Food Quality Suco de Fruta Biflavonoids Proanthocyanidins Vitis Harvest Flavonoids chemistry.chemical_classification Tropical Climate Condições climáticas 010401 analytical chemistry Polyphenols Agriculture 04 agricultural and veterinary sciences General Medicine Viticultura tropical Semiárido 040401 food science Arid 0104 chemical sciences Fruit and Vegetable Juices Horticulture Bioativos compostos Proanthocyanidin chemistry Uva Polyphenol Fruit Environmental science Viticulture Brazil Food Science |
| Zdroj: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice) Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
| Popis: | The technological and polyphenolic parameters of grapes for juice processing obtained from successive harvests were studied in semi-arid tropical viticulture. Red grapes ?BRS Violeta? and ?Isabel Precoce? were harvested during the same year and analyzed based on a multivariate approach that included climatic variations. The grapes were marked by variations in flavonoid compounds, particularly anthocyanins. Temperature, global radiation, air velocity and evapotranspiration rates were associated with higher accumulation of bioactive polyphenols in grape berries and juices. The temperatures in February were associated with higher antioxidant activity in grape peels, while the highest thermal amplitude in August and November favored the accumulation of anthocyanins up to 564 mg kg−1. Flavanols and procyanidin compounds were more abundant in seeds when the maximum thermal amplitude was 13.8 °C. The climatic data together with the polyphenolic results point out useful information about appropriate periods for harvesting grapes with high phenolic content in tropical areas. Made available in DSpace on 2022-09-09T17:05:35Z (GMT). No. of bitstreams: 1 Effects-of-successive-harvesting-in-the-same-year-2019.pdf: 385958 bytes, checksum: f7a2cfcb2a7faf9e9dab6a390668208a (MD5) Previous issue date: 2019 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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